We divide 97210228 by 644
Our goal is to divide 97210228 by 644.

Advancing to step 1:
If we divide 9 by 644, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 644

On to step 2:
When dividing 97 by 644, we get 0 with a remainder of 97.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 97 after subtracting 0 from 97.
Grab the next digit (2) from the dividend, add it to 97, then carry on: 972 / 644

Advancing to step 3:
When dividing 972 by 644, we get 1 with a remainder of 328.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 328 after subtracting 644 from 972.
Include the next digit (1) from the dividend after 328, then repeat: 3281 / 644

Moving on to step 4:
When dividing 3281 by 644, we get 5 with a remainder of 61.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 3220 from 3281 to get 61.
Grab the next digit (0) from the dividend, add it to 61, then carry on: 610 / 644

Advancing to step 5:
If we divide 610 by 644, we get 0 and a remainder of 610.
The number 0 becomes the next digit in our result. 
Result so far: 150.0
Deduct 0 from 610 and we're left with 610.
Grab the next digit (2) from the dividend, add it to 610, then carry on: 6102 / 644

On to step 6:
When dividing 6102 by 644, we get 9 with a remainder of 306.
Put 9 as the next digit of the answer. 
Result so far: 1509.0
If we take 5796 away from 6102, we end up with 306.
Bring next digit (2) of the dividend behind the 306 and repeat the process: 3062 / 644

Step 7:
644 goes into 3062 4 times with a remainder of 486.
Write down 4 as next digit of the result. 
Result so far: 15094.0
Subtract 2576 from 3062 to get 486.
Append the next digit (8) from the dividend to 486 and continue with: 4868 / 644

Advancing to step 8:
If we divide 4868 by 644, we get 7 and a remainder of 360.
The next digit of our result is 7. 
Result so far: 150947.0
The remainder is 360 after subtracting 4508 from 4868.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 9:
644 can be fit into 3600 5 times, resulting in a remainder of 380.
The next digit of our result is 5. 
Result so far: 150947.5
Subtracting 3220 from 3600 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Step 10:
The number 644 fits into 3800 5 times, leaving a remainder of 580.
Use 5 as the next digit of our solution. 
Result so far: 150947.55
The remainder is 580 after subtracting 3220 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

In conclusion, the division gives 150947.55 with a balance of 0.58.